From the bustling streets of Delhi to the quiet hamlets of Tamil Nadu, people swear by an age-old trick: place a lemon under your bed, cut it open the next day, and see what secrets it spills.

Tired of throwing away partially used lemons? Check out this $9 produce keeper that Amazon shoppers say extends freshness by ...

The citric acid in lemons both kills germs and removes mold, while the oil in lemon peels can cut through grease and other substances. If you have access to a supply of lemons, give these ...